Does malaria infection increase the risk of predation-related mortality during bird migration?
Summary: The migratory culling hypothesis posits that infected individuals are less likely to survive long-distance migration due to physiological and behavioral effects, but this lacks empirical evidence. Here, we tested this hypothesis by sampling 357 passerines from 11 species during their autumn...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004224025835 |
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| author | Laura Gangoso Claudia Santamaría-Cervantes Josué Martínez-de la Puente María José Ruiz López Jordi Figuerola |
| author_facet | Laura Gangoso Claudia Santamaría-Cervantes Josué Martínez-de la Puente María José Ruiz López Jordi Figuerola |
| author_sort | Laura Gangoso |
| collection | DOAJ |
| description | Summary: The migratory culling hypothesis posits that infected individuals are less likely to survive long-distance migration due to physiological and behavioral effects, but this lacks empirical evidence. Here, we tested this hypothesis by sampling 357 passerines from 11 species during their autumn migration to wintering grounds in two different areas, i) at a stopover in southern Spain, and ii) in the Canary Islands, where they were drifted and preyed upon by Eleonora’s falcons while en route to the southern Sahara. Molecular detection of infections by Plasmodium, Haemoproteus, and Leucocytozoon was conducted on bird samples. A higher prevalence of both Plasmodium and Haemoproteus was observed in birds preyed upon by falcons. While a complete understanding of the mechanistic effects of haemosporidian infections on migration performance needs experimental validation, our approach suggests that infection reduces migration success by increasing mortality due to route deviations and/or predation. |
| format | Article |
| id | doaj-art-21f259f4a75d42e9b3679a94955cfc1b |
| institution | OA Journals |
| issn | 2589-0042 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-21f259f4a75d42e9b3679a94955cfc1b2025-08-20T02:35:03ZengElsevieriScience2589-00422024-12-01271211135810.1016/j.isci.2024.111358Does malaria infection increase the risk of predation-related mortality during bird migration?Laura Gangoso0Claudia Santamaría-Cervantes1Josué Martínez-de la Puente2María José Ruiz López3Jordi Figuerola4Department of Biodiversity, Ecology and Evolution, Faculty of Biological Sciences, Complutense University of Madrid, Madrid, Spain; Corresponding authorInstituto de Investigación en Recursos Cinegéticos (IREC) CSIC-UCLM-JCCM, Ciudad Real, SpainEstación Biológica de Doñana (EBD-CSIC), Sevilla, Spain; Ciber de Epidemiología y Salud Pública, Madrid, SpainEstación Biológica de Doñana (EBD-CSIC), Sevilla, Spain; Ciber de Epidemiología y Salud Pública, Madrid, SpainEstación Biológica de Doñana (EBD-CSIC), Sevilla, Spain; Ciber de Epidemiología y Salud Pública, Madrid, SpainSummary: The migratory culling hypothesis posits that infected individuals are less likely to survive long-distance migration due to physiological and behavioral effects, but this lacks empirical evidence. Here, we tested this hypothesis by sampling 357 passerines from 11 species during their autumn migration to wintering grounds in two different areas, i) at a stopover in southern Spain, and ii) in the Canary Islands, where they were drifted and preyed upon by Eleonora’s falcons while en route to the southern Sahara. Molecular detection of infections by Plasmodium, Haemoproteus, and Leucocytozoon was conducted on bird samples. A higher prevalence of both Plasmodium and Haemoproteus was observed in birds preyed upon by falcons. While a complete understanding of the mechanistic effects of haemosporidian infections on migration performance needs experimental validation, our approach suggests that infection reduces migration success by increasing mortality due to route deviations and/or predation.http://www.sciencedirect.com/science/article/pii/S2589004224025835Wildlife microbiologyEcologyOrnithologyEvolutionary biology |
| spellingShingle | Laura Gangoso Claudia Santamaría-Cervantes Josué Martínez-de la Puente María José Ruiz López Jordi Figuerola Does malaria infection increase the risk of predation-related mortality during bird migration? iScience Wildlife microbiology Ecology Ornithology Evolutionary biology |
| title | Does malaria infection increase the risk of predation-related mortality during bird migration? |
| title_full | Does malaria infection increase the risk of predation-related mortality during bird migration? |
| title_fullStr | Does malaria infection increase the risk of predation-related mortality during bird migration? |
| title_full_unstemmed | Does malaria infection increase the risk of predation-related mortality during bird migration? |
| title_short | Does malaria infection increase the risk of predation-related mortality during bird migration? |
| title_sort | does malaria infection increase the risk of predation related mortality during bird migration |
| topic | Wildlife microbiology Ecology Ornithology Evolutionary biology |
| url | http://www.sciencedirect.com/science/article/pii/S2589004224025835 |
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